http://opencsv.sf.net: A simple library for reading and writing CSV in Java
  • Glen Smith
  • Tom Squires
  • Maciek Opala
  • J.C. Romanda
  • Sean Sullivan
  • Kyle Miller
  • Vladimir Dolzhenko
  • Scott Conway
  • Andrew Rucker Jones 
package com.opencsv.validators;

import com.opencsv.exceptions.CsvValidationException;


This is the interface for validators for an array of Strings read by the CSVReader after it is processed. This should only be used if you have a very good understanding and full control of the data being processed. Good examples of a RowValidator would be to ensure the number of columns in the row or, if you know what data are in which column, check the format and type of data. 
Author:Scott Conway
Since:5.0
/**
 * This is the interface for validators for an array of {@link String}s read by
 * the {@link com.opencsv.CSVReader} after it is processed.
 * This should only be used if you have a very good understanding and full
 * control of the data being processed. Good examples of a RowValidator would
 * be to ensure the number of columns in the row or, if you know what data are
 * in which column, check the format and type of data.
 *
 * @author Scott Conway
 * @since 5.0
 */
public interface RowValidator {
    
Performs the validation check on the string and returns the result.
While not called directly in opencsv it is in the interface to provide
an easy way to test if the validator is functioning properly.

Params:
  • row – Array of strings to be validated
Returns:true if the row is valid, false otherwise
/**
     * Performs the validation check on the string and returns the result.
     * While not called directly in opencsv it is in the interface to provide
     * an easy way to test if the validator is functioning properly.
     *
     * @param row Array of strings to be validated
     * @return {@code true} if the row is valid, {@code false} otherwise
     */
    boolean isValid(String[] row);

    
Performs the validation check on the row (an array of Strings) and throws an exception if invalid. 
Params:
  • row – Array of Strings to be validated.
Throws:
/**
     * Performs the validation check on the row (an array of {@link String}s)
     * and throws an exception if invalid.
     *
     * @param row Array of {@link String}s to be validated.
     * @throws CsvValidationException Thrown if invalid. Should contain a
     * message describing the error.
     */
    void validate(String[] row) throws CsvValidationException;
}